61011671 has 8 divisors (see below), whose sum is σ = 69783840. Its totient is φ = 52253568.

The previous prime is 61011659. The next prime is 61011673. The reversal of 61011671 is 17611016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61011671 is a prime.

It is a super-3 number, since 3×61011671³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61011673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8555 + ... + 13971.

It is an arithmetic number, because the mean of its divisors is an integer number (8722980).

Almost surely, 2^61011671 is an apocalyptic number.

61011671 is a deficient number, since it is larger than the sum of its proper divisors (8772169).

61011671 is a wasteful number, since it uses less digits than its factorization.

61011671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7033.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 61011671 is about 7810.9967993848. The cubic root of 61011671 is about 393.6748220965.

Adding to 61011671 its reverse (17611016), we get a palindrome (78622687).

The spelling of 61011671 in words is "sixty-one million, eleven thousand, six hundred seventy-one".